martin luther king, junior. and as you see here on the mall, lots of people are turning out to say hello but also to volunteer and to be part of the inaugural excitement. the president took his message online, as well. >> four years ago, my family celebrated inauguration weekend and martin lugar king day by rolling up our sleeves and lending a hand in our community. that's because inaugurations are about more than just celebrating. they're about coming to together to make our country a better place. it was one of the highlights of the weekend and this year we're going to do it again on saturday. >> the president and the first lady who took part in this national day of service. here they are at a washington school earlier today helping volunteers who were staining a book case. john berman very critical of the president's form in painting that book case. you've been rough on him, buddy. speaking of service though, next month, cnn will begin introducing you to heroes who make service a way of life. first take a loo